In a separate body of research, scientists determined that a 10 mg daily dose of resveratrol was associated with lowered insulin resistance in Type-II diabetics.

Resveratrol is a powerful protective anti-fungal compound found in the skin of red grapes. Known to activate a longevity signaling gene (SIRT-1), resveratrol has been shown to extend lifespan by lowering the risks associated with systemic inflammation.
The polyphenol may help to prevent cancer development, cardiovascular disease and dementia, and it is now shown to impede the development of diabetes by regulating insulin sensitivity.